Best time of day
The best time of day for analytical work.
Analytical covers logic, numbers, data and decisions that need reasoning: financial models, data analysis, debugging a hard problem, legal or contract review.
Working memory and sustained attention rise after the first hours of the day and fade in the late afternoon for most people; the timing shifts with chronotype.
By chronotype
Morning type
strongest 6am to 11pmNeither strongly
strongest 6am to 11pmEvening type
strongest 6am to 11pmModel output for a neutral energy level and eight hours of sleep, from the baseline and chronotype tables on Sources. Timing effects are real but not universal; a person's own check-ins move these curves.
How to use this
- Find your chronotype above. If you wake easily before 7 and fade by 9pm, read the morning row; if the reverse, the evening row.
- Put your hardest analytical work in the strongest range and protect it: no meetings, no inbox.
- Put routine work in the weak hours. It does not need your peak.
- Keep the same slot for a week, then judge by output, not by how it felt on day one.
Or let the schedule do it.
My Calendy maps your own curve from four answers, breaks a project into tasks, and places each one at the hour your brain is best at that kind of work, around your calendar. When a block slips, it re-plans. 7 days free, no card.